The basis of it is the Jain Agams and the practical experience of Bhagwan Mahaveer.

The purpose of Preksha Meditation is the purification of the psyche.

The spiritual nature of Preksha Meditation is to know you through yourself and to pacify the passions and emotions.

The scientific basis of Preksha Meditation is anatomy, physiology and psychology. The change happens on the body, mind and emotional state.

The prime procedure is to see and to know. It develops the ability of perception. The other additional procedures are-Asanas, Pranayam, Kayotsarg, Shwas Preksha, Shareer Preksha, Chaitanya Kendra Preksha, Leshya Dhyan, Anupreksha and Bhavna.

Healthy Body, Peaceful Mind, Purified Emotions and Spiritual Development are the major benefits of Preksha Meditation.

The general benefits of Preksha are as intuition, self-confidence, activeness, creativity, and discerning power.

It brings the lightness in the body, causes to healthy immunity, chemical balance, regulates the body system and gets rid of many diseases. These are the physical benefits of Preksha Meditation.

It reduces the stress. It increases awareness, concentration, memory power, positive thinking and brings balance in life. These are the mental benefits of Preksha Meditation.

It purifies the emotions, decreases passion of anger, arrogance, greed and deceit and awakens the state of Veetarag-free from attachment and aversion.

They are perception, self-realization, faith, and bliss.

Seeing activates the consciousness whereas thinking activates the brain and mind. One can't think while seeing. Seeing is the strong means of getting rid of uncontrolled thinking process.

Conscious is a part of consciousness. Consciousness is like the Sun and Conscious is like a ray of the Sun. Mind is the instrument working through the power of consciousness. Conscious works like boss and mind works like servant.

Memory, imagination, thinking and planning are the works of mind.

There are two words in it-Kaya+utsarg= Kaya means body and Utsarg means to give up. Kayotsarg means to control the physical fickleness and give up the attachment with physical body.

To release the stress, to experience the separation between body and soul, to give up the negative attachment with the body one practices Kayotsarg.

There are three types of stress-physical, mental, and emotional. The Kayotsarg is the strong means to release it.

It is excessive physical labor and imbalance between labor and rest.

It is excessive mental labor and anxiety.

Negative emotions and passions like anger, jealousy, fear, and hatred.

To uplift of energy unlimitedly stored at the Center of Energy situated at the lowest part of the spinal cord.

To concentrate on slow, long and rhythmic process of breathing is called Dirgha-Shwas-Preksha.

For awareness, perception, concentration, neutrality, and living in present.

It is a pure inner natural process of life. It is beyond liking and disliking. It is controlled voluntary and involuntary.

It purifies the perception and awakens the sleeping conscious. It helps in subtle observance.

Shakti Kendra ( Center of Energy ) is situated at the lower end of the spinal code.
Swasthya Kendra ( Center of Health ) is situated at the two inches below of the navel.
Taijas Kendra (Center of Bio-electricity) is situated at the navel.
Anand Kendra (Center of Bliss) is situated on the middle of the chest, near the heart.
Vishuddhi Kendra (Center of Purity) is situated on the middle of the throat.
Brahma Kendra (Center of Celibacy) is situated at the tip of the tongue.
Prana Kendra (Center of Vitality) is situated at the tip of the nose.
Chakshus Kendra (Center of Vision) is situated inside of both the eyes. Apramad Kendra ( Center of Vigilance ) is situated inside of both the ears.
Darshan Kendra ( Center of Intuition ) is situated between both the eye-brows.
Jyoti Kendra ( Center of Enlightenment ) is situated on the middle of the forehead.
Shanti Kendra ( Center of Peace ) is situated on the front portion of the head. Gyana Kendra ( Center of Knowledge ) is situated on the top of the head.

Physical Health, Mental strength, and Emotional Purification are the visible effects of it.

The emotions originate from the glands.

Gyana Kendra ( Center of Knowledge ) helps there.

Meditating on Shanti Kendra ( Center of Peace ) and Jyoti Kendra ( Center of Enlightenment ) one can pacify the passion of anger.

The Center of Intuition helps there.

Leshya is the stream of emotion of six colors like black, blue, grey, red, yellow and white. First three colors of them effect negatively. Leshya creates the aura around the body.

To concentrate on colored steam of emotion is Leshya Dhyan.

It changes the negative colors into positive, transforms the passions, awakens intuitive power, pacifies anger and develops the right knowledge.

It is on Anand Kendra ( Center of Bliss ) with bright green color.

It is on Vishuddhi Kendra ( Center of Purity ) with bright blue color.

It is on Darshan Kendra ( Center of Intuition ) with bright red color of rising Sun.

It is on Jyoti Kendra ( Center of Enlightenment ) with bright white color like of snow.

It is on Gyan Kendra ( Center of Knowledge ) with bright yellow color of sunflower.

To think over and over on the particular subjects of breaking down the delusion is Anupreksha. It is also a kind of meditation?

It is a meditation for impressing the unconscious mind with positive wordings of fulfilling the hearty desire.

Most of the processes of Preksha Meditation are related to physiology so it is necessary to have a general knowledge about it for a practitioner.

The smallest independently functioning unit in the structure of an organism is cell. It is a basic unit of living thing OR The smallest structural unit of an organism that is capable of independent functioning, consisting of one or more nuclei, cytoplasm, and various organelles, all surrounded by a semi permeable cell membrane.

It is an aggregation of morphologically similar cells and associated intercellular matter acting together to perform one or more specific functions in the body. There are four basic types of tissue: muscle, nerve, epidermal, and connective.

Muscle is an organ composed of bundles or sheets of muscle tissue that is specialized to undergo repeated contraction and relaxation, thereby producing movement of body parts, maintaining tension, or pumping fluids within the body.

An organ is a complete and independent part of body that has a specific function.

Body system is a group of physiologically or anatomically complementary organs or parts: the nervous system; the skeletal system.

They are mainly 9 like -
1. The skeletal system
2. The Muscular system
3. The Respiratory system
4. The Digestive system
5. The Blood circulatory system
6. The Nervous system
7. The Endocrine system
8. The Excretory system
9. The Procreator system

It is a bodily system that consists of the bones, their associated cartilages, and the joints, and supports and protects the body, produces blood cells, and stores minerals. It shapes and sizes the body.

It helps in movement. It maintains beauty and strength of the body.

It helps in taking in the pure vital energy and taking out the impure air through the breathing process.

Digestive system helps in many ways from chewing to digest the food.

Blood provides the essential elements to the cells.

This system regulates the body's responses to internal and external stimuli.

This system of glands produces endocrine secretions that help to control bodily metabolic activity.

It absorbs the minerals and excretes the remaining out.

They are the kidneys, the large intestine, the small intestine, the spleen, the pancreas, the gallbladder, the liver, the stomach, the diaphragm, the heart, and the lungs.

The muscles and nerves are relaxed in the Kayotsarg at the result of free from stress and tension.

It increases the electrical force in the muscles during the stressful situation and the muscles start to contract because of that. Every emotion manifests through the muscles.

A man has to face favorable and unfavorable situations in his day-to-day life a lot. This creates the mental worry or emotional strain that makes natural relaxed behavior impossible. The physical body can adjust it to some extent. When the stress or stain stays for longer time or attacks frequently on the mind and body it becomes tension.